Concrete wall building block



Aug. 21, 1945. E. B. JOHNSON E.TAL

CONCRETE WALL BUILDING BLOCK Filed Aug. 31, 1942 fi'bvenior Azzww sl zaw - the wall formed.

Patented fAug. 21?, 1 9451 OFFICE concanra'wsnn BUILDING BLOCK Enoch a. Johnson and-Arnold's. Kaehler, Red win I ApplicationrAugust .31, 1942; Serial No. 456,758

110mm. (cue-431 This invention'relates tel-hollow building-blocks having :the outer andlinnerwall sections thereofconstructed of molded concrete; and. particularly to blocks of. thatctype whichwhen properly laidand in use will substantially prevent. seepage of moisture from the outside. of abuilding to the inside wall which is-so common in concrete block constructions.

It is an object of ourinvention to provide simple, inexpensivebuilding block. constructions which substantially eliminate seepage ofimoisture and the formation of frost on the inner. wall. and, whicharev so constructed as to permit slight give.

or flexibility between inner. and outer concrete walls formed therefromywhich may be'easily'laid.

and-more readily handledand filled withlinsulating -material than most concrete blocksnow extensively utilized, and: which further ar adapted for installation or attachment. of rafters, joists and window frames.

A more specific object is thelprovisionotbuilding block constructions wherein inner. and. outer wall sections or slabs of: molded. concrete are utilized, spaced apart and connected together with some degree of flexibility by bridgej members constructed of wood or other relatively moisture. and.

heat repellent and fibrous material, with: such bridge members related to constitute handling means for facilitating laying of the blocks as well as means for nailing or otherwise securingrafters. joists, window frames and other. structures.

A further object'is the, provision of buildin structureoi the class described wherein the outer andinner walls formed bysuchunitsmay be made of differentnmaterials, andwhereby'the bridging members are so related with the heights and lengths ofthe concrete .wallsections or slabs as to facilitate. laying. of ithe units, filling of the hollow: wallwithinsulating material andJnoninterfer encewith parts: of (successive units, when Still another objectds the provision of building, blocks of he class described wherein. not only the wall sec ions-properbut the cornersofabullding constructed from such units will have its inner and outer wall sections spaced apartand. connected by bridgingmembers repellenttomoischaracters refer to the same parts throughout the views, and, in which: I

Fig. l is anisometrical view illustrating a portion. of a corner of a building constructedz trom;

our improvedblocksy Fig; 2 is atop plan" view, some. portions'rbroken.

away, of one of our standardbuildingunits;

Fig. 3 is a front elevation of; the; same.with.a:. part of the block broken away and shown-inzvertical section;

Fig. '4 is aplaneview ofxa portionof one: of thewalls broken: away illustrating a corner block:

structure Fig. 5.is a rear elevation-ofthe samewwith a:

portion thereof shown in vertical section;

Fig. 6'is a top plan view of a, halfblock-used in conjunction. with window or door frames and corners, and

Fig. 7' is a vertical section taken on the. line- 1-1 of Fig. 6.

Our buildingconstructionzincludes for. a build ing or pair of adjoining walls a multiplicity of standard wall blocks and a requisitenumber of special corner blockscooperating therewith to produce a hollow wall wherein the. innerasection. is maintained free from transmission ion-seepage? of moisture and. frost. A

The standard full sized :wallunits. comprise inner and outer relatively thick slabs-II and I2.

respectively which preferably are constructedof molded I concrete or otherv material bonded to:-

gether by a' suitable cement. The inner wall section or slab Il may be: constructed of. finer or verydiiferent filler: material. than the outerrto suit various needs. 'I'heSe-twoslabs I I and. I!

are connected together and. spacedcapart by .meansof two or more bridging members llfi which havetheir ends Ila embedded in the material of the. slabs preferably installed during the molding of the block by a suitable concrete block or tile machine.

material or composition which is repellent to moisture'and heat. The height of these bridging 3 members isconsiderablyless than: thesheight of the slabs II and I! so that the. upper and lower edges-of members l3. maybe disposed'rsomedislie of the bridging members are providedwi'th suitable: anchoring means whichmaybe of any The bridging members. I I are" preferably constructed of wood or other. fibrous.

integrally molded perpendicular end section Ilaextending rearwardly to the inner surface of the inner slab I5. The bridging member l3 constructed of wood or other fibrous material and identical with the bridging members first described with reference to the standard wall block, connects the opposing ends of the slabs I4 and I5 and has the anchoring means such as the dovetailed extremities l3a embedded in the material of the two slabs. Slab I5 is connected to the end section Ha of the block through the medium of an insulating bridging or connection member [6 which may be in the form of a 2 x 4 Or other bar of suitable fibrous material having flexibility and some resiliency but being comparatively repellent to moisture and heat. The bar I6 is embedded in the concrete material of the block during the molding of the same with one of its plane faces disposed flush with the inner wall of the block and with preferably its parallel face disposed a short distance inwardly of the outer face of the inner slab l5. A second plate or other strip Ilia, as shown, is secured to the 2 x4, IS with its outer face disposed flush with the outer face of the slab I! of the block. The bar I6 is securely anchored and embedded in the concrete or other plastic material by suitable means such as a series of spaced anchoring pins or nails ll extending outwardly from the vertical sides of the bars Hi. It will, of course, be understood that members I6 and lBa may be integrally constructed by rabbeting the longitudinal edges of a bar of suitable material. 1

In laying the walls of a building made from our improved units the blocks are conveniently grasped and handled through the medium of the bridging members I3 and are laid and cemented together in staggered successive layers, as shown in the drawing. In forming the corners to adjoining walls our improved corner blocks are used, it being essential that in each instance the corner block is laid with the bridging bar 16 disposed on' the inner side of the block and opposing the'end of the standard wall block at the other side of the corner formed. Thus in Fig. 1 in laying the next layer of blocks the next corner block will be reversed from its position shown in the uppermost layer of blocks or, in other words, turned upside down from its position in Fig. l with the moisture repelling bar opposing the end of the adjacent standardwall block on the righthand wall. V

With' our-"improved construction it will be seen that th individual blocks are easily handled through the medium of the relatively narrow bridging members I3, are of considerably less weight than the concrete block new in wideuse which utilize molded concrete bridging or end members to connect the inner and outer slabs,

and because of the flexibility and resiliency of.

the bridging members make possible for a small amount of shifting between the outer and inner sections of the walls formed by means of the inner and outer slabs.

It will further be apparent that no parts of the walls formed are connected between the inner and outer sections or slabs through the medium of concrete or other relatively porous plastic materials. The inner and outer slabs of the standard wall units are connected only through the medium of the bridging members l3 which are repellent. to moisture, and the moisture repellent bars I8 prevent transmission of moisture from the outer slabs ll to the inner slabs ii of the corner blocks as well as transmission of moisture in theabutting standard wall block between the connected ends of the slabs l l and II. It will further be apparent from our improved structure that the wooden or other fibrous bridging members and bars l6 enable joists, rafters, and window frames to be readily attached by nails or screws which is an additional advantage over the conventional types of concrete blocks now in wide use,

In Figs. 6 and 7 we disclose a half block which may be used'where window frames or'door frames are required in a wall and also in'conJunction with formation of joints or cornersbetween two adjoining walls. This half block comprises inner and outer slabs I 8 and I9 respectively constructed of molded concrete or other molded plastic material and connected together and spaced apart, one end of the block being formed by means of a bridging member l3 similar to the bridging members previously described having the anchoring dovetails or other means at the embedded ends thereof. Bridging member I] isdisposed inwardly of the extremities of the block and also inwardlyof the upper and lower edges of the slabs I8 and IS. The other ends of slabs. l8 and I! are connected together and spaced apart by a bar 20 with a plate 20a of less width attached thereto, said her and plate being similar to bar It and the related plate Ilia used in the corner block construction, Bar 20 has its outer side flush with the adjacent side walls and extends the full height of the block. The,v bar is constructed of wood or other fibrous moisture and heat repellent material and is embedded in the concrete in the molding of the block and has retaining nails or other anchoring means extending from the longitudinal edges thereof into the concrete. I

If a half block is needed in the construction of a wall with a window frame, door frame, or other opening therein, it maybe laid with the wooden bar 20 disposed towards the frame for prevention of moisture seepage and heat transmission between the slabs and also for facilitating attachment of the window or door frame to the wall. It may also be used in conjunction with the comer formed by two adjoining walls with the bar 20 disposed flush a'gainst the bar It of a corner block, or, in some instances,;with bar 20 disposed in opposition to the end of an adjoining standard wall block. I p

It will, of course, be understood that various changes may be madein the form, details, arrangement and proportions of the various parts without departing from the scope of our invention.

What is claimed is:

A corner building block for the construction of walls comprising an outer molded slab having its main section provided with inner and outer parallel fiat surfaces and having an end section integrally formed therewith and extending at a rlzhtzanlle thereto. a second molded ms or less lenzth than said first slab and spaced from the main portion thereof havin; parallel iiat suriaces,-

a transverse handling and connecting member constructed oi tough, fibrous material interposed between the ends of said slabs adjacent one end of the block and having its ends embedded and anchored in said slabs, and a second connecting member also constmcted o1 touzh, iibrous material such as wood interposed between the and sec- 

